Marsh elevated compressor housing safeguards the electrical components of sewage treatment plants from water ingress caused by flooding or seepage.Manufactured with a green gel coat finish, the raised housing is vented to ensure even air distribution to the compressor.Compressors provide diffused air to an aeration chamber within a package sewage treatment plant. Aerobic bacteria (biomass), supported by diffused air and mobile media, break down solids and increase oxygen levels, reducing ammonia in the effluent before discharge.